Chadwell, Dustin (September 12, 2012). "Mark of the Ninja for XBLA". Gaming Age. Archived from the original on September 19, 2012. Retrieved September 19, 2012.
Chadwell, Dustin (September 12, 2012). "Mark of the Ninja for XBLA". Gaming Age. Archived from the original on September 19, 2012. Retrieved September 19, 2012.